For the third time now, the GIVE Challenge has invited research teams to develop systems that generate natural-language instructions to assist users in solving a puzzle in a virtual 3D environment. This year teams of undergraduate students, graduate students, and researchers from six universities in five countries have built eight systems, and you can now play with these systems over the Internet.

one of the systems will be assigned to you. Follow the instructions it produces for you, and see whether you can find the trophy. It shouldn't take more than 10 minutes and you are contributing valuable evaluation data. Play as many games as you like: there are 3 new game worlds to explore.

If you could help us spread this invitation by passing it on to your colleagues (not necessarily NLP experts), friends, and students, we would be most grateful.

Donna Byron, Northeastern University Justine Cassell, Northwestern University Robert Dale, Macquarie University Alexander Koller, University of Potsdam Johanna Moore, University of Edinburgh Jon Oberlander, University of Edinburgh Kristina Striegnitz, Union College